Levitt, S. D. (2009). Super Freakonomics: [global cooling, patriotic prostitutes and why suicide bombers should buy life insurance]. Harper.
Cita Chicago (17th ed.)Levitt, Steven D. Super Freakonomics: [global Cooling, Patriotic Prostitutes and Why Suicide Bombers Should Buy Life Insurance]. USA: Harper, 2009.
Cita MLA (9th ed.)Levitt, Steven D. Super Freakonomics: [global Cooling, Patriotic Prostitutes and Why Suicide Bombers Should Buy Life Insurance]. Harper, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.